PedospherePub Date : 2025-02-01DOI: 10.1016/j.pedsph.2023.12.010
Ryusuke HATANO
{"title":"Impacts of changes in peat soils due to agricultural activities on greenhouse gas (especially N2O) emissions and their mitigations","authors":"Ryusuke HATANO","doi":"10.1016/j.pedsph.2023.12.010","DOIUrl":"10.1016/j.pedsph.2023.12.010","url":null,"abstract":"<div><div>Natural peatlands are a source of CH<sub>4</sub> emission but a sink of CO<sub>2</sub> and N<sub>2</sub>O. On the other hand, peatlands drained for agricultural use suppress CH<sub>4</sub> emission but become a source of CO<sub>2</sub> and N<sub>2</sub>O emissions. Drained peatland area accounts for 2% of the world's agricultural land, but its greenhouse gas (GHG) emissions account for 7% of global GHG emissions. Immediately after land clearing, N<sub>2</sub>O emission significantly increases due to nitrogen (N) fertilization. Furthermore, in tropical peatland fields that have been cultivated for a long term, annual N<sub>2</sub>O emission increased to 700 kg N ha<sup>-1</sup> year<sup>-1</sup>. This shows that a successive process of organic matter decomposition, nitrification, and denitrification has been developed. On the other hand, in newly cleared oil palm plantations with proper water and fertilizer managements, both N<sub>2</sub>O and CO<sub>2</sub> emissions decreased over time. Capillary risen from groundwater could increase water-filled pore space of the top layer, improve plant N uptake, and suppress organic matter decomposition. This is thought to have consumed surplus NO<sub>3</sub><sup>-</sup>-N, decomposed easily decomposable organic matter, and reduced N<sub>2</sub>O emission. Further research to verify its effectiveness over a long term will help to create sustainable peatland management.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 8-11"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139022236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Drought effects on nitrogen and phosphorus releases from litter vary between arid and humid areas: A meta-analysis","authors":"Yanyu JIANG , Fuzhong WU , Qiuxia WU , Siqi WU , Jingjing ZHU , Xiangyin NI","doi":"10.1016/j.pedsph.2024.03.003","DOIUrl":"10.1016/j.pedsph.2024.03.003","url":null,"abstract":"<div><div>Climate warming has intensified the global hydrological cycle, amplifying the differences in precipitation and soil moisture between arid and humid areas. Such a change under regional drought may alter nitrogen (N) and phosphorus (P) releases during litter decomposition in terrestrial ecosystems, but how these biogeochemical processes respond to drought differently between arid and humid areas remains unclear. Here, we compiled 259 and 138 paired observations (with and without drought conditions) to assess the global variations in the drought effects on N and P releases during litter decomposition between arid (aridity index < 0.5) and humid (aridity index > 0.5) areas. Litter N release increased under drought in both arid (0.35%) and humid (3.62%) areas, and P release decreased by 7.32% in arid areas but increased by 2.22% in humid areas under drought. These changes in N and P releases from decomposing litter were positively correlated with drought duration in arid areas, dependent on microclimate, edaphic factors, and litter quality. Our findings highlight the contrasting effects of drought on litter N and P releases between arid and humid ecosystems, and this differential influence will greatly improve our capability to evaluate and forecast nutrient cycling during litter decomposition under different precipitation patterns.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 182-192"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140283458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PedospherePub Date : 2025-02-01DOI: 10.1016/j.pedsph.2024.10.006
Jibo SHI , Muhammad KHASHI U RAHMAN , Ruonan MA , Qiang LI , Yingxin HUANG , Guangdi LI
{"title":"Effects of nitrogen enrichment on soil enzyme activities in grassland ecosystems in China: A multilevel meta-analysis","authors":"Jibo SHI , Muhammad KHASHI U RAHMAN , Ruonan MA , Qiang LI , Yingxin HUANG , Guangdi LI","doi":"10.1016/j.pedsph.2024.10.006","DOIUrl":"10.1016/j.pedsph.2024.10.006","url":null,"abstract":"<div><div>Nitrogen (N) enrichment has resulted in widespread alteration of grassland ecosystem processes and functions mainly through disturbance in soil enzyme activities. However, we lack a comprehensive understanding of how N deposition affects specific key soil enzymes that mediate plant-soil feedback of grassland. Here, with a meta-analysis on 1 446 cases from field observations in China, we show that N deposition differently affects soil enzymes associated with soil biochemical processes. Specifically, N-promoted C, N, and P-acquiring hydrolase activities significantly increased by 8.73%, 7.67%, and 8.69%, respectively, related to an increase in microbial-specific enzyme secretion. The increased relative N availability and soil acidification were two potential mechanisms accounting for the changes in soil enzyme activities with N enrichment. The mixed N addition in combination of NH<sub>4</sub>NO<sub>3</sub> and urea showed greater stimulation effect on soil enzyme activities. However, the high rate and long-term N addition tended to weaken the positive responses of soil C-, N- and P-acquiring hydrolase activities to N enrichment. Spatially increased mean annual precipitation and temperature primarily promoted the positive effects of N enrichment on N- and P-acquiring hydrolase activities, and the stimulation of C- and N-acquiring hydrolase activities by N enrichment was intensified with the increase in soil depth. Finally, multimodal inference showed that grassland type was the most important regulator of responses of microbial C, N, and P-acquiring hydrolase activities to N enrichment. This meta-analysis provides a comprehensive insight into understanding the key role of N enrichment in shaping soil enzyme activities of grassland ecosystems.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 84-96"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PedospherePub Date : 2025-02-01DOI: 10.1016/j.pedsph.2024.09.005
Andrés RODRÍGUEZ-SEIJO , Vanesa SANTÁS-MIGUEL , Daniel ARENAS-LAGO , Manuel ARIAS-ESTÉVEZ , Paula PÉREZ-RODRÍGUEZ
{"title":"Use of nanotechnology for safe agriculture and food production: Challenges and limitations","authors":"Andrés RODRÍGUEZ-SEIJO , Vanesa SANTÁS-MIGUEL , Daniel ARENAS-LAGO , Manuel ARIAS-ESTÉVEZ , Paula PÉREZ-RODRÍGUEZ","doi":"10.1016/j.pedsph.2024.09.005","DOIUrl":"10.1016/j.pedsph.2024.09.005","url":null,"abstract":"<div><div>Nanotechnology offers promising perspectives for revolutionizing agriculture by enhancing productivity and sustainability. Although the global agricultural nanotechnology market was valued at US$ 352.4 billion in 2023 and is estimated to reach US$ 868.9 billion by 2031, concerns about adverse environmental effects persist. This review summarizes the latest developments and perspectives of nanotechnology applied to agriculture, highlighting both advancements and potential impacts on soil ecosystems. However, concerns regarding regulatory measures, economic viability, and scalability hinder its widespread adoption. Collaboration among stakeholders is crucial to establishing effective frameworks for the safe and responsible application of nanotechnology in agriculture. Despite these concerns, nanotechnology holds great promise for addressing emerging challenges in agriculture and advancing toward more sustainable and efficient practices.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 20-32"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PedospherePub Date : 2025-02-01DOI: 10.1016/j.pedsph.2023.12.011
Ary BRUAND
{"title":"Social insects behind the microgranular structure of Ferralsols: Consequences for their physical fertility when cultivated","authors":"Ary BRUAND","doi":"10.1016/j.pedsph.2023.12.011","DOIUrl":"10.1016/j.pedsph.2023.12.011","url":null,"abstract":"<div><div>It was long accepted that the microgranular structure of many Ferralsols was mainly related to physicochemical processes and to their mineralogical composition. It now appears, however, that this microgranular structure originates from the burrowing activity of termites and ants. Given its importance for the physical properties of Ferralsols, it will be necessary to study the different termite and ant species responsible for this microgranular structure and the characteristics of the burrowing activity associated with species. This is a major point to better understand the possible long-term consequences of agriculture on Ferralsol properties because it strongly affects soil faunal biodiversity.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 17-19"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138992780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PedospherePub Date : 2025-02-01DOI: 10.1016/j.pedsph.2024.11.006
Hongtao SHENG , Zhenyu KANG , Zhen NI , Hangyu LI , Yuqing WANG , Mengfang CHEN , Jianjun CAO , Linbo QIAN
{"title":"Remediation of trichloromethane-contaminated soil and groundwater using microorganisms and iron-based materials: A review","authors":"Hongtao SHENG , Zhenyu KANG , Zhen NI , Hangyu LI , Yuqing WANG , Mengfang CHEN , Jianjun CAO , Linbo QIAN","doi":"10.1016/j.pedsph.2024.11.006","DOIUrl":"10.1016/j.pedsph.2024.11.006","url":null,"abstract":"<div><div>New pollutants have become a significant concern in China's efforts toward ecological and environmental protection. Trichloromethane (TCM, CHCl<sub>3</sub>), one of these new pollutants, is primarily released into soil and groundwater through various industrial activities. Over the past four decades, researchers have consistently focused on the remediation of TCM-contaminated soil and groundwater using microorganisms and iron-based materials, which hold significant potential for practical application. Understanding the remediation process and the factors influencing TCM degradation through these two methods is crucial for advancing both theoretical research and practical implementation. This review focuses on the degradation mechanisms of TCM in soil and groundwater by microorganisms and iron-based materials. It summarizes the active microorganisms and modified iron-based materials with high TCM degradation capabilities, discusses enhancement measures for both methods in the remediation process, and finally, outlines the challenges faced by these methods. The goal is to provide theoretical references for efficient remediation of TCM-contaminated soil and groundwater.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 137-150"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143105153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comprehensive evaluation of the potential of plant growth-promoting rhizobacteria for applications in agriculture in stressed environments","authors":"Naila RAFIQUE , Sadia KHALIL , Massimiliano CARDINALE , Aysha RASHEED , Fengliang ZHAO , Zainul ABIDEEN","doi":"10.1016/j.pedsph.2024.02.005","DOIUrl":"10.1016/j.pedsph.2024.02.005","url":null,"abstract":"<div><div>The world is facing a consistent increase in human population and a noticeable decrease in cultivable lands due to soil salinization, abrupt climatic changes, and less rainfall. These problems have increased the importance of finding ecologically sustainable solutions to ensure global food security. Plant growth-promoting rhizobacteria can be advantageous to enhancing plant productivity and safeguarding against environmental stresses. They may assist plants by atmospheric nitrogen fixation, nutrient recycling, phosphate solubilization, iron sequestration <em>via</em> siderophore formation, and production of phytohormones like indole-3-acetic acid and 1-aminocyclopropane-1-carboxylate deaminase. They can also be used as biofertilizers and biocontrol agents as they produce antibiotics, exopolysaccharides, and hydrolytic enzymes. In this review, the connections between microbial populations, as microbial inoculants, and plant systems are highlighted, focusing on the enhancement of plant development, environmental resilience of agricultural systems, ecosystem services, and biological challenges under stressed conditions. This review also emphasizes the use of advanced molecular tools and techniques to effectively characterize potent soil microbial communities, their importance in increasing crop yield in stressed soils, and the prospects for future research.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 229-248"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139891644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PedospherePub Date : 2025-02-01DOI: 10.1016/j.pedsph.2024.10.009
Vincent CHAPLOT , Philippe BAVEYE , René GUENON , Elie LE GUYADER , Budiman MINASNY , Anoop Kumar SRIVASTAVA
{"title":"Biochars improve agricultural production: The evidence base is limited","authors":"Vincent CHAPLOT , Philippe BAVEYE , René GUENON , Elie LE GUYADER , Budiman MINASNY , Anoop Kumar SRIVASTAVA","doi":"10.1016/j.pedsph.2024.10.009","DOIUrl":"10.1016/j.pedsph.2024.10.009","url":null,"abstract":"<div><div>Biochar application to soil is commonly recognized to improve soil fertility and consequently biomass and food production sustainably. We re-examined the robustness of the underlying data and found that, of the 12 000+ publications on “biochar and agriculture” used in meta-studies, only 109 Institute for Scientific Information (ISI) papers (or 0.9%) provide experimental data on the impacts on crop yield and/or biomass production. Our analysis revealed that none (0%) of these studies compared a biochar treatment to a treatment adding to the soil the same amounts of easily accessible nutrients as found in biochar, 0.9% evaluated the toxicity of biochar, and 5.5% considered at least two cropping cycles after a single biochar application, which in all cases are major shortcomings. Finally, when computed only for agricultural soils (<em>n</em> = 65), the mean biomass or grain yield gain, which was 16.1% (median at 7.1%) for all available experiments, decreased to -0.64% (median at 5.2%). Consequently, the underlying evidence base to support biochar application in agricultural soils to enhance biomass production and grain yield is so far limited.},</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 295-298"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soil holobiont interplay and its role in protecting plants against salinity stress","authors":"Amani SLITI , Vineet SINGH , Anjali PANDE , Jae-Ho SHIN","doi":"10.1016/j.pedsph.2024.09.002","DOIUrl":"10.1016/j.pedsph.2024.09.002","url":null,"abstract":"<div><div>Salinity poses a significant challenge to global agricultural productivity, impacting plant growth, yield, soil fertility, and the composition of soil microbial communities. Moreover, salinity has a significant impact in shifting soil microbial communities and their functional profiles. Therefore, we explored and analyzed the intricate relationships among plant-associated microbes/microbiome, including plant growth-promoting bacteria, arbuscular mycorrhizal fungi (AMF), archaea, and viruses in alleviating salinity stress in plants. In this review, we have highlighted that salinity stress selectively enhances the growth of certain microbes such as Gammaproteobacteria, Bacteroidetes, Firmicutes, Acidobacteria, Euryarchaeota, Thaumarchaeota, Crenarchaeota, and lysogenic viruses, while decreasing the abundances of others (Alphaproteobacteria and Betaproteobacteria) and AMF root colonization. These microbes regulate water and nutrient uptake, decrease ionic and osmotic toxicity, enhance the syntheses of antioxidant enzymes (catalase and glutathione S-transferases) and osmolytes (erythrose and galactinol), increase phytohormone (indole-3 acetic acid) production, and activate salinity stress tolerance genes (<em>SOD</em>, <em>APX</em>, and <em>SKOR</em>) in plants. Furthermore, we meticulously examined the significance of soil microbiome and the need for multidisciplinary omics studies on the changes in soil microbiome composition and the relationships of synergistic holobiont in mitigating salinity stress in plants. Such studies will provide insights into the use of microbial components as a sustainable and eco-friendly approach to modulate salinity stress and enhance agricultural productivity.</div></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"35 1","pages":"Pages 97-115"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}